9 ROAD / FAULT CASES
Control through the stop.
Dry and low grip, unequal left/right grip, wind, port loss and upper-motor loss. Each run checks lane position, heading, suspension travel and finite resources.
P4 / SYSTEM INTEGRATION
Every part has to work together.
The ducts, fans, wheels, brakes and energy stores share one vehicle. This revision brings their mass, motion and power demand into the same acceleration–braking event.
Conditional theoretical results. Physical measurements: 0.Reference aerodynamic law retained in this isolation control; not the selected new-body result. A passed calculation is a result for the stated model and requirements. It does not establish that an installed vehicle meets them.
THE CONTINUOUS EVENT
From launch to a complete stop.
No fresh battery at the braking point. Wheel speed, suspension motion, pack temperature, stored energy and cold resources carry through the event.
0–100 km/h2.06 s
0–400 km/h28.53 s
400–0 km/h463.9 m
Model mass2,712 kg
| Event | Published Chiron reference | Conditional CryoPulse model |
|---|---|---|
| 0–100 km/h | 2.4 s | 2.06 s |
| 0–200 km/h | 6.1 s | 6.17 s |
| 0–300 km/h | 13.1 s | 13.65 s |
| 0–400 km/h | 32.6 s | 28.53 s |
| 400–0 km/h | 491 m | 463.9 m |
| 0–400–0 km/h | 41.96 s | 36.41 s |
Comparison with the published original Chiron figures, not a matched physical test. The effective engine-power and tyre laws remain model assumptions. This control retains the earlier aerodynamic law to isolate the additions; it does not establish the new body’s performance. Bugatti’s 2017 test record ↗
TIMESTEP CHECK
Repeat at half the step.
The integration control changed by 3.3 cm in stopping distance when the numerical step halved from 1 ms to 0.5 ms. This checks numerical sensitivity; it does not validate the physical assumptions.
ENERGY ACCOUNTING
Keep the losses.
Cell heating, converter loss, actuator draw, tyre slip and friction-brake work remain in the ledgers. The cold loop receives an explicit prepared coolant supply.
UNRESTRICTED POWER BALANCE / SAME FITTED ENGINE
Hold the engine. Reserve the pulse.
A separate continuation carries the actual stores left by the 0–400 run. It keeps 1 MJ of DC energy for traction assistance near the engine-only equilibrium.
Engine-only force equilibrium444.7 km/h
Finite 1 MJ boost peak451.7 km/h
Fresh battery at 400 km/h0
Mechanical pulse work920 kJ
A power-balance screen, not an established vehicle top speed.The 0.57 m² external drag-area target is retained. Engine power is extrapolated above 400 km/h. Gearing, tyres, thermal rejection and high-speed stability are not qualified by this calculation. This continuation is separate from the braking branch.
CONTROLLED CAMBER / A DEFINED LOAD PATH
Move the carriage. Keep the arms fixed.
A dedicated hydraulic circuit adjusts the upper wishbone's inboard carriage. A separate commanded link corrects toe. The wheel-brake hydraulic circuit stays independent.
A projection of the sampled 3D linkage. Steering and shaft readouts come from the spatial solution. This drawing is not a stress analysis.
- Upper carriage movement
- Steering-link length
- Driveshaft length
- Larger CV angle
891 SPATIAL POSES
The linkage closes.
±85 mm heave, −4° to +1° camber and ±8° toe. Fixed arm lengths, upright geometry, wheel height and spindle orientation close to numerical precision.
Required carriage travel: 26.6 mm. Required steering-link travel: 43.7 mm.
15 MPa WORKING SUPPLY
Size the movement.
The stated 6 kNm camber and 600 Nm steering loads require at most 12.49 MPa. A 30 MPa component rating gives a calculated force margin above 2.4.
The simultaneous motion test stays within 35 L/min and the 20 kW motor limit. Peak pump draw is charged while moving.
SAMPLED PACKAGING
Make room for it.
The wheel/body check clears all 96 sampled poses, with 17.6 mm minimum clearance. Conservative suspension and cold-bay boxes clear the airway wall envelope by at least 17.7 mm.
These are rigid component envelopes. Detailed joints, hoses, tyre growth, compliance and manufactured-part strength remain qualification work.
THE FIRST PHYSICAL DEMONSTRATOR
Make the movement measurable.
Measure requested camber, achieved camber, toe correction, carriage stroke and driveshaft movement before a tyre-force test. Detailed bearing seats, retained joints, stops, guards and purchased low-force actuators still need part drawings.
AIR THROUGH THE VEHICLE
The route has to clear the hardware.
The revised ducts move inward around the suspension mounts and carriage guides. The door area remains between the 1.9 m and 2.9 m stations.
Geometry progress and aerodynamic performance have separate gates.The earlier body reached a full mesh pass. The latest reroute clears its component envelopes; its duct connectivity and revised mesh are recorded separately. The tapered nose and tail are a further candidate, with a 30 kg body allowance. Their calculated forces must pass their own checks before replacing the performance assumptions.
FINITE COLD RESOURCES
Account for the preparation, too.
The pressure loop uses stored cold and heat from warmer air. The calculation tracks the coolant consumed before driving and throughout the event.
PRECOOLING MODEL
Start from ambient.
The specified metal masses and heat-transfer targets need 45.6 s of regulated precooling. The model removes 531 kJ and consumes 2.67 kg of the initial 6 kg coolant supply.
SAME EVENT
Carry the resource state.
The complete model event leaves 2.47 kg of coolant. Accepted generation is 41.0 kJ; all service loads are debited separately. No coolant-boiloff mass reduction is credited to acceleration or braking.
EXTERNAL ENERGY INPUT
No free-energy credit.
The reversible preparation floor for 6 kg of liquid nitrogen is 4.45 MJ; practical preparation needs more. The loop's heat exchangers, efficiencies and machine maps remain design requirements.
OPEN CALCULATIONS / CONTINUING DEVELOPMENT
Inspect what changed.
This is one stage of a larger CryoPulse programme. Earlier releases remain available with their original assumptions. New body forces and new component models receive their own records.
Coupled-model audit ↗The passed computational gates and their scopeClean-extraction replay ↗Zero difference in the reproduced controlHydraulic sizing ↗Loads, stroke, pump flow and powerSpatial geometry ↗891 poses, including toe and CV motionComponent clearance ↗Conservative swept envelopes against the ductsWheel clearance ↗Solved rigid wheel motion against CADCold preparation ↗Metal cooldown, boiloff and external preparationCoupled road and fault checks ↗Nine continuous-event control casesMatched integration controls ↗Separate the added mass and service drawSource provenance ↗Frozen parent files and derived model hashes
A theoretical prototype and a test programme. No physical vehicle, tyre-force, high-speed airflow or cryogenic performance measurement has been made.